A 28-year-old female-to-male transgender patient with unknown medical history was brought to the ED after being found unresponsive in the street with a helmet on his head. Trauma code was activated for presumed traumatic event. He was afebrile with normal BP, however, and was bradycardic at 54 beats/min and hypoxemic to 90% oxygen saturation on ambient air. His respirations were unlabored at 16 breaths/min. The patient was comatose with Glasgow coma scale of 7. Lung auscultation revealed decreased breath sounds on the left hemithorax. He was noted to have faint thoracic scarring bilaterally, which was presumed to be from bilateral mastectomies, along with acute deep abrasions suggestive of friction injuries with a dominant left-sided distribution. Cardiac and abdominal examination was unremarkable. Due to audible oropharyngeal secretions and signs of vomit on his clothing, the decision was made to proceed with intubation for airway protection.CBC count, basic metabolic panel, urine, and serum toxicology testing that included alcohol and salicylate levels were unrevealing. CT scan of the head was negative for acute ischemic stroke or hemorrhage. A postintubation chest radiograph is shown in Figure 1. Extended focused assessment with sonography for trauma was negative for free intraabdominal fluid.Critical care consultation was requested for further evaluation and chest tube placement.